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2006•Jiangsu nongye xuebaoRequires access

Antioxidative Activities of Corn Silk Extracts

Niu Peng-fei

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Abstract

Five components with different polarities in the ethanol extracts of corn silk were obtained by using chloroform,ethyl acetate,n-butanol and methanol as extractant,respectively.The anti-oxidative activities of the five extractions were compared in two systems,DPPH system and Fe~(2+)inducing PUFA system.N-butanol extract had the strongest scavenging activity to DPPH free radicals,and the next was chloroform extraction.The anti-oxidative activity of chloroform extract in the Fe~(2+) inducing PUFA system was the strongest,followed by ethyl acetate extract.The same extract had different anti-oxidative activities in these two systems.

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What this paper is about

Five components with different polarities in the ethanol extracts of corn silk were obtained by using chloroform,ethyl acetate,n-butanol and methanol as extractant,respectively.The anti-oxidative activities of the five extractions were compared in two systems,DPPH system and Fe~(2+)inducing PUFA system.N-butanol extract had the strongest scavenging activity to DPPH free radicals,and the next was chloroform extraction.The anti-oxidative activity of chloroform extract in the Fe~(2+) inducing PUFA system was the strongest,followed by ethyl acetate extract.The same extract had different anti-oxidative activities in these two systems.

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Available abstract

Five components with different polarities in the ethanol extracts of corn silk were obtained by using chloroform,ethyl acetate,n-butanol and methanol as extractant,respectively.The anti-oxidative activities of the five extractions were compared in two systems,DPPH system and Fe~(2+)inducing PUFA system.N-butanol extract had the strongest scavenging activity to DPPH free radicals,and the next was chloroform extraction.The anti-oxidative activity of chloroform extract in the Fe~(2+) inducing PUFA system was the strongest,followed by ethyl acetate extract.The same extract had different anti-oxidative activities in these two systems.

Key concepts: Chloroform, Ethyl acetate, DPPH, Chemistry, Butanol, Ethanol, Methanol, Extraction (chemistry)

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